Flubromazepam and bromazolam found in two different expected ‘Xanax’ and ‘diazepam’ samples

A white alprazolam (Xanax) bar expected to contain alprazolam was found to contain bromazolam and flubromazepam in addition to alprazolam. A brown capsule expected to contain diazepam was found to contain bromazolam and flubromazepam instead. What does this mean? Bromazolam is a new benzodiazepine that has strong sedative effects. There is limited information available about